<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>css3基础</title> 
<style> 

div{
    width:200px;
    height: 100px;
	background: radial-gradient(circle, red,blue, yellow);
}

</style>
</head>
<body>
<div>这是使用径向渐变</div>

</body>
</html>